Clearly too far to go, 54123. Folks are not willing to write it for you.
ThreeDee, was that a comment or a question?
fiftyfour, I don’t know how you would get that information by displaying something in a web view.
In fact, a better way would be to write a script using cURL to get the raw html text from the page and then parse it for the info you want. There’s a tutorial for doing that for the local weather. Start by getting an AppleScript that works, then move on to more advanced things.